const Chunk = require("../template")

function testChunkComplexScenarios() {
  console.log(
    "1. 复杂分块系统测试:",
    (() => {
      const arr = Array.from({ length: 100 }, (_, i) => ({
        id: i + 1,
        name: `Item${i + 1}`,
        value: Math.random() * 100,
        category: ['A', 'B', 'C'][i % 3]
      }))
      
      // 复杂分块操作
      const chunks = Chunk.chunkWithMap(arr, 10, (item) => ({
        ...item,
        processed: true,
        value: item.value * 2
      }))
      
      return chunks.length === 10 &&
             chunks.every(chunk => chunk.length === 10) &&
             chunks[0][0].processed === true
    })()
  )

  console.log(
    "2. 分块动态负载测试:",
    (() => {
      const arr = Array.from({ length: 1000 }, (_, i) => i + 1)
      
      // 动态负载测试
      const loadPatterns = [
        { method: 'chunk', size: 100 },
        { method: 'chunkByCount', count: 10 },
        { method: 'chunkWithStep', size: 50, step: 25 },
        { method: 'chunkWithFill', size: 75, fill: 0 },
        { method: 'chunkWithFilter', size: 100, filter: (item) => item % 2 === 0 }
      ]
      
      let successCount = 0
      loadPatterns.forEach(pattern => {
        try {
          let result
          if (pattern.method === 'chunk') {
            result = Chunk.chunk(arr, pattern.size)
          } else if (pattern.method === 'chunkByCount') {
            result = Chunk.chunkByCount(arr, pattern.count)
          } else if (pattern.method === 'chunkWithStep') {
            result = Chunk.chunkWithStep(arr, pattern.size, pattern.step)
          } else if (pattern.method === 'chunkWithFill') {
            result = Chunk.chunkWithFill(arr, pattern.size, pattern.fill)
          } else if (pattern.method === 'chunkWithFilter') {
            result = Chunk.chunkWithFilter(arr, pattern.size, pattern.filter)
          }
          
          if (result && result.length > 0) {
            successCount++
          }
        } catch (error) {
          // 某些操作可能失败
        }
      })
      
      return successCount >= 4
    })()
  )

  console.log(
    "3. 分块边界条件测试:",
    (() => {
      const boundaryTests = [
        () => Chunk.chunk([], 5), // 空数组
        () => Chunk.chunk([1], 0), // 大小为0
        () => Chunk.chunk([1, 2, 3], -1), // 负数大小
        () => Chunk.chunk([1, 2, 3], 1.5), // 小数大小
        () => Chunk.chunk([1, 2, 3], Infinity), // 无穷大
        () => Chunk.chunk([1, 2, 3], NaN), // NaN
        () => Chunk.chunk(null, 2), // null数组
        () => Chunk.chunk(undefined, 2), // undefined数组
        () => Chunk.chunk([1, 2, 3], '2'), // 字符串大小
        () => Chunk.chunk([1, 2, 3], {}), // 对象大小
        () => Chunk.chunk([1, 2, 3], []), // 数组大小
        () => Chunk.chunk([1, 2, 3], () => {}) // 函数大小
      ]
      
      let successCount = 0
      boundaryTests.forEach(test => {
        try {
          const result = test()
          if (result !== undefined) {
            successCount++
          }
        } catch (error) {
          // 某些操作可能失败
        }
      })
      
      return successCount >= 6 // 至少6个操作成功
    })()
  )

  console.log(
    "4. 分块错误恢复测试:",
    (() => {
      const arr = [1, 2, 3, 4, 5]
      
      try {
        // 错误恢复测试
        const processor = (chunk) => {
          if (chunk.includes(3)) {
            throw new Error('Test error')
          }
          return chunk.map(item => item * 2)
        }
        
        const errorHandler = (error, chunk) => {
          return chunk.map(item => item * 3)
        }
        
        const result = Chunk.chunkWithErrorHandling(arr, 2, processor, errorHandler)
        
        return result.length === 3 &&
               result[0].length === 2 &&
               result[1].length === 2 &&
               result[2].length === 1
      } catch (error) {
        return false
      }
    })()
  )

  console.log(
    "5. 分块内存管理测试:",
    (() => {
      const arr = Array.from({ length: 10000 }, (_, i) => i + 1)
      
      // 内存管理测试
      const initialMemory = process.memoryUsage().heapUsed
      
      // 执行大量分块操作
      for (let i = 0; i < 100; i++) {
        Chunk.chunk(arr, 100)
        Chunk.chunkByCount(arr, 100)
        Chunk.chunkImmutable(arr, 100)
      }
      
      const finalMemory = process.memoryUsage().heapUsed
      const memoryIncrease = finalMemory - initialMemory
      
      return memoryIncrease < 100 * 1024 * 1024 // 100MB以内
    })()
  )

  console.log(
    "6. 分块并发操作测试:",
    (() => {
      const arr = Array.from({ length: 1000 }, (_, i) => i + 1)
      
      // 并发操作测试
      const operations = [
        () => Chunk.chunk(arr, 100),
        () => Chunk.chunkByCount(arr, 100),
        () => Chunk.chunkWithStep(arr, 100, 50),
        () => Chunk.chunkWithFill(arr, 100, 0),
        () => Chunk.chunkWithFilter(arr, 100, (item) => item % 2 === 0),
        () => Chunk.chunkWithMap(arr, 100, (item) => item * 2)
      ]
      
      const results = operations.map(op => op())
      
      return results.every(result => result && result.length > 0)
    })()
  )

  console.log(
    "7. 分块复杂查询测试:",
    (() => {
      const arr = Array.from({ length: 100 }, (_, i) => ({
        id: i + 1,
        name: `Item${i + 1}`,
        value: Math.random() * 100,
        category: ['A', 'B', 'C'][i % 3],
        active: i % 2 === 0
      }))
      
      // 复杂查询测试
      const queries = [
        { method: 'chunk', size: 10 },
        { method: 'chunkWithFilter', size: 10, filter: (item) => item.active },
        { method: 'chunkWithMap', size: 10, map: (item) => ({ ...item, processed: true }) },
        { method: 'chunkWithStep', size: 10, step: 5 },
        { method: 'chunkWithFill', size: 10, fill: { id: 0, name: 'Empty', value: 0 } }
      ]
      
      const results = queries.map(query => {
        let result
        if (query.method === 'chunk') {
          result = Chunk.chunk(arr, query.size)
        } else if (query.method === 'chunkWithFilter') {
          result = Chunk.chunkWithFilter(arr, query.size, query.filter)
        } else if (query.method === 'chunkWithMap') {
          result = Chunk.chunkWithMap(arr, query.size, query.map)
        } else if (query.method === 'chunkWithStep') {
          result = Chunk.chunkWithStep(arr, query.size, query.step)
        } else if (query.method === 'chunkWithFill') {
          result = Chunk.chunkWithFill(arr, query.size, query.fill)
        }
        return result && result.length > 0
      })
      
      return results.every(result => result === true)
    })()
  )

  console.log(
    "8. 分块状态一致性测试:",
    (() => {
      const arr = [1, 2, 3, 4, 5, 6, 7, 8]
      
      // 状态一致性测试
      const operations = [
        () => Chunk.chunk(arr, 3),
        () => Chunk.chunkByCount(arr, 3),
        () => Chunk.chunkWithStep(arr, 3, 3),
        () => Chunk.chunkWithFill(arr, 3, 0),
        () => Chunk.chunkWithMap(arr, 3, (item) => item * 2)
      ]
      
      const results = operations.map(op => op())
      
      return results.every(result => result && result.length > 0) &&
             results[0].length === 3 && // chunk结果
             results[1].length === 3 && // chunkByCount结果
             results[2].length === 3 && // chunkWithStep结果
             results[3].length === 3 && // chunkWithFill结果
             results[4].length === 3 // chunkWithMap结果
    })()
  )

  console.log(
    "9. this上下文复杂场景测试:",
    (() => {
      const complexObj = {
        multiplier: 3,
        processComplex: function(arr) {
          const chunks = Chunk.chunkWithMap(arr, 2, (item) => item * this.multiplier)
          return chunks.length
        }
      }
      
      const arr = [1, 2, 3, 4, 5]
      return complexObj.processComplex(arr) === 3
    })()
  )

  console.log(
    "10. 复杂对象this绑定复杂场景测试:",
    (() => {
      const complexConfigObj = {
        config: { threshold: 2 },
        processWithConfig: function(arr) {
          const chunks = Chunk.chunkWithFilter(arr, 2, (item) => item >= this.config.threshold)
          return chunks.length > 0
        }
      }
      
      const arr = [1, 2, 3, 4, 5]
      return complexConfigObj.processWithConfig(arr) === true
    })()
  )

  console.log(
    "11. 分块复杂操作序列测试:",
    (() => {
      const arr = Array.from({ length: 100 }, (_, i) => i + 1)
      
      // 复杂操作序列
      const operationSequence = [
        { method: 'chunk', size: 10 },
        { method: 'chunkWithMap', size: 10, map: (item) => item * 2 },
        { method: 'chunkWithFilter', size: 10, filter: (item) => item % 4 === 0 },
        { method: 'chunkWithStep', size: 10, step: 5 },
        { method: 'chunkWithFill', size: 10, fill: 0 }
      ]
      
      let successCount = 0
      operationSequence.forEach(seq => {
        try {
          let result
          if (seq.method === 'chunk') {
            result = Chunk.chunk(arr, seq.size)
          } else if (seq.method === 'chunkWithMap') {
            result = Chunk.chunkWithMap(arr, seq.size, seq.map)
          } else if (seq.method === 'chunkWithFilter') {
            result = Chunk.chunkWithFilter(arr, seq.size, seq.filter)
          } else if (seq.method === 'chunkWithStep') {
            result = Chunk.chunkWithStep(arr, seq.size, seq.step)
          } else if (seq.method === 'chunkWithFill') {
            result = Chunk.chunkWithFill(arr, seq.size, seq.fill)
          }
          
          if (result && result.length > 0) {
            successCount++
          }
        } catch (error) {
          // 某些操作可能失败
        }
      })
      
      return successCount >= 4 // 至少4个操作成功
    })()
  )

  console.log(
    "12. 分块复杂场景综合测试:",
    (() => {
      const arr = Array.from({ length: 1000 }, (_, i) => ({
        id: i + 1,
        name: `Item${i + 1}`,
        value: Math.random() * 100,
        category: ['A', 'B', 'C'][i % 3],
        active: i % 2 === 0
      }))
      
      // 综合复杂场景
      const scenarios = [
        // 场景1: 基本分块
        () => {
          const chunks = Chunk.chunk(arr, 100)
          return chunks.length === 10
        },
        // 场景2: 按数量分块
        () => {
          const chunks = Chunk.chunkByCount(arr, 10)
          return chunks.length === 10
        },
        // 场景3: 带映射分块
        () => {
          const chunks = Chunk.chunkWithMap(arr, 100, (item) => ({
            ...item,
            processed: true
          }))
          return chunks.length === 10 && chunks[0][0].processed === true
        },
        // 场景4: 带过滤分块
        () => {
          const chunks = Chunk.chunkWithFilter(arr, 100, (item) => item.active)
          return chunks.length > 0
        },
        // 场景5: 最终验证
        () => {
          const chunks = Chunk.chunk(arr, 100)
          return chunks.length === 10 && chunks[0].length === 100
        }
      ]
      
      const results = scenarios.map(scenario => scenario())
      
      return results.every(result => result === true)
    })()
  )
}

testChunkComplexScenarios()
